Test run at: 2019-09-16 18:02:52 GMT
Client Prefix (v4): 187.19.164.x/24
Client AS (v4): 28126
IPv4 Probes: 72
Outbound spoofing summary (from the client to our server) Source address type IPv4 Private - RFC1918 rewritten Routable ✔ received Largest spoofable neighbor prefix length none
Meaning of result status in column:
received Spoofed packet was received. ✔ Pattern of tests from this IP block indicates a switch from allowing spoofing to blocking it. rewritten Spoofed packet was received, but the source address was changed en route. blocked Spoofed packet was not received, but unspoofed packet was. unknown Neither spoofed nor unspoofed packet was received.
IPv4 Adjacent Netblock Testing:
Your host (187.19.164.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon) Prefix
ASN of spoofed
Received 187.19.164.x/24 /31 28126 rewritten 187.19.164.x/24 /30 28126 rewritten 187.19.164.x/24 /29 28126 rewritten 187.19.164.x/24 /28 28126 rewritten 187.19.164.x/24 /27 28126 rewritten 187.19.164.x/24 /26 28126 rewritten 187.19.164.x/24 /25 28126 rewritten 187.19.164.x/24 /24 28126 rewritten 187.19.165.x/24 /23 28126 rewritten 187.19.166.x/24 /22 28126 rewritten 187.19.160.x/24 /21 28126 rewritten 187.19.172.x/24 /20 28126 rewritten 187.19.180.x/24 /19 28126 rewritten 187.19.132.x/24 /18 28126 rewritten 187.19.228.x/24 /17 28126 rewritten 187.19.36.x/24 /16 28127 rewritten 187.18.164.x/24 /15 28270 rewritten 187.17.164.x/24 /14 28263 rewritten 187.23.164.x/24 /13 28573 rewritten 187.27.164.x/24 /12 22085 rewritten 187.3.164.x/24 /11 28573 rewritten 187.51.164.x/24 /10 10429 rewritten 187.83.164.x/24 /9 26615 rewritten 187.147.164.x/24 /8 8151 rewritten
Meaning of status in Received column:
rewritten The source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers.
IPv4 Outbound Filtering Depth:
The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 10 IP hop(s).Summary:
The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.Feedback:
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